T. (J. Broion — Shawangunk Conglomerate. 



467 



maximum thickness in this vicinity of 284 feet where the 

 full formation was probably present and not increased in thick- 

 ness by dip of beds, folding, or faulting. Above this comes 

 the High Falls shale, a series of red, green, and black shales, 

 somewhat variable in thickness, in color, and in physical char- 



FlG. l. 



1 



Fig. 1. Sketch map of the region near High Falls, N. Y., showing the 

 location of sections here described. Scale : half -inch to the mile. 



acter even in closely adjacent areas. The upper member is the 

 Binnewater sandstone, a bed which in the type locality at Bin- 

 newater, some four miles northeast of High Falls, is a dense 

 white quartzite, but which in this locality retains the quartzite 

 character only for a few feet near its upper limit and is a thin- 

 bedded, porous sandstone, interbedded with green shale 

 throughout the greater part of its thickness. 



